JP4177238B2

JP4177238B2 - Structural reinforcement method

Info

Publication number: JP4177238B2
Application number: JP2003388745A
Authority: JP
Inventors: 健夫朝倉; 睦浩大野
Original assignee: JDC Corp
Current assignee: JDC Corp
Priority date: 2003-11-19
Filing date: 2003-11-19
Publication date: 2008-11-05
Anticipated expiration: 2023-11-19
Also published as: JP2005146753A

Description

本発明は各種の構造物を補強するための工法に関する。本発明についてさらにいうと、強度上の信頼性や作業面の合理性を高めるために改善された構造物補強工法に関する。 The present invention relates to a method for reinforcing various structures. More specifically, the present invention relates to an improved structure reinforcing method for improving the reliability in strength and the rationality of the work surface.

周知のとおり、コンクリート構造物は年月を経るにしたがい強度が漸減していく。他の構造物も経年劣化するものである。したがってコンクリート構造物やその他の構造物については早めに補強策を講じるのが望ましく、それで寿命が延び、長く安全に使用することができる。 As is well known, the strength of concrete structures gradually decreases over time. Other structures also deteriorate over time. Therefore, it is desirable to take reinforcement measures for concrete structures and other structures at an early stage, so that the service life can be extended and the structure can be used safely for a long time.

補強工法の一つとして補強繊維材と接着剤を用いるものがある。この工法は補強繊維材に接着剤を塗布し、それを構造物表面に貼り付けるというものである。このとき構造物表面に貼り付ける補強繊維層の数は要求強度に応じて設定される。ちなみに複数の補強繊維層を積層形成するときは、一層目の補強繊維材に塗布した接着剤が硬化してから二層目の補強繊維材を貼り付ける。三層目以降もこれと同様である。 As one of the reinforcing methods, there is a method using a reinforcing fiber material and an adhesive. In this construction method, an adhesive is applied to the reinforcing fiber material, and the adhesive is applied to the surface of the structure. At this time, the number of reinforcing fiber layers to be attached to the structure surface is set according to the required strength. Incidentally, when a plurality of reinforcing fiber layers are laminated and formed, the second layer reinforcing fiber material is pasted after the adhesive applied to the first reinforcing fiber material is cured. The same applies to the third and subsequent layers.

このような従来工法であると、補強繊維層に含浸させた接着剤が硬化するまでに多くの時間を要する。そのため施工量に関係なく一層当たり一日を費やす。つまり補強繊維層が五層であれば五日を費やすわけである。ということでこの従来工法は施工効率が低く、補強のための工期が長くなってしまう。 In such a conventional construction method, a long time is required until the adhesive impregnated in the reinforcing fiber layer is cured. Therefore, one day is spent per hour regardless of the amount of construction. That is, if the reinforcing fiber layers are five layers, five days are spent. Therefore, this conventional construction method has low construction efficiency and a long construction period for reinforcement.

上記以外のものとして、重層補強繊維シートの要所に樹脂を含浸硬化させて甲殻シートをつくり、これを構造物の表面に巻き付けた後、甲殻シート内面と構造物表面との間に充填材を注入するという工法（特許文献１参照）がある。さらには、高強度繊維シートを内貼りした表面被覆型枠を構造物の表面に取り付け、該型枠内面と構造物表面との間に修復材を注入するという工法（特許文献２参照）もある。これらのうちで前者の場合は、甲殻シートの硬化部が下地構造物に馴染まないという難点があるほか、甲殻シートの端部処理に際して既述の樹脂含浸・貼り付け・樹脂硬化という遅速な手順を経なければならないために、工期短縮も期待したほど望めない。加えて前者の工法は、四角柱構造物などの場合に充填材の介在しない箇所が生じるから、該構造物一部とその他部とで補強後の強度が不均等になる。一方で後者の場合は、高強度繊維シートが表面被覆型枠側に存在するだけである。すなわち補強部分の一部にＦＲＰ層が形成されるだけであるから強度上の保証が十分でない。
特開平１１−３４３７４４号公報特開２００１−２２０８９９号公報 In addition to the above, a shell sheet is made by impregnating and curing resin at the key points of the multilayer reinforcing fiber sheet, and this is wound around the surface of the structure, and then a filler is placed between the inner surface of the shell sheet and the surface of the structure. There is a method of injecting (see Patent Document 1). Furthermore, there is a construction method (see Patent Document 2) in which a surface-covered mold with an internal high-strength fiber sheet attached is attached to the surface of the structure, and a repair material is injected between the inner surface of the mold and the surface of the structure. . Among these, in the former case, there is a problem that the hardened part of the shell sheet does not fit into the underlying structure, and the slow procedure of resin impregnation, pasting, and resin hardening as described above is performed at the end of the shell sheet. Because we have to pass, we can't expect as much as we expected to shorten the construction period. In addition, in the former construction method, in the case of a quadrangular prism structure or the like, a portion where no filler is present is generated, and therefore, the strength after reinforcement is uneven in part of the structure and other parts. On the other hand, in the latter case, the high-strength fiber sheet only exists on the surface-covered mold side. That is, since the FRP layer is only formed on a part of the reinforcing portion, the strength guarantee is not sufficient.
JP 11-343744 A JP 2001-220899 A

上記で明らかなとおり、従来工法にはつぎのような課題が残されている。その一つは作業が合理的でないため工期の短縮が望めないことである。他の一つは補強度上の保証が不十分であるため補強上の信頼性を高めるのが困難なことである。 As apparent from the above, the following problems remain in the conventional method. One of them is that work cannot be shortened because the work is not rational. The other is that it is difficult to increase the reliability of reinforcement because the guarantee on the degree of reinforcement is insufficient.

本発明はこのような課題に鑑み、合理的で信頼性の高い施工が行える構造物補強工法を提供しようとするものである。 In view of such problems, the present invention intends to provide a structure reinforcing method capable of performing a rational and highly reliable construction.

本発明の請求項１に係る構造物補強工法は所期の目的を達成するために下記の課題解決手段を特徴とする。すなわち請求項１記載の構造物補強工法は、
構造物の表面に補強繊維材を取り付けて当該表面に補強繊維層を形成するための積層工程と、補強繊維層を成形型枠材で被覆して補強繊維層を内蔵した成形空間を形成するための空間形成工程と、未硬化接着剤を成形空間内に注入充填するとともに当該接着剤を補強繊維層に含浸させて硬化させるための補強成形工程とを備えていること、および、
接着剤として主剤と硬化剤とからなる二液型のものを用いるとともに、接着剤注入充填手段として、主剤を供給するための主剤供給系と、硬化剤を供給するための硬化剤供給系と、これら両系を合流させて主剤と硬化剤の混合物をつくりそれを供給するための混合供給系とを備えたものを用いること、および、
接着剤注入充填手段の主剤供給系が、主剤を収容するための液体槽と、主剤用液体槽内の主剤を送り出すための出力調整式の主剤用ポンプ部と、主剤用液体槽と主剤用ポンプ部とにわたる主剤用の第１の供給管と、主剤用ポンプ部と混合供給系とにわたる主剤用の第２の供給管とを備えていて、そのうちの主剤用液体槽が温度調整手段を有していること、および、
接着剤注入充填手段の硬化剤供給系が、硬化剤を収容するための液体槽と、硬化剤用液体槽内の硬化剤を送り出すための出力調整式の硬化剤用ポンプ部と、硬化剤用液体槽と硬化剤用ポンプ部とにわたる硬化剤用の第１の供給管と、硬化剤用ポンプ部と混合供給系とにわたる硬化剤用の第２の供給管とを備えていて、そのうちの硬化剤用液体槽が温度調整手段を有していること、および、
接着剤注入充填手段の混合供給系が、スタティックミキサと混合供給管とノズルとを備えていて、スタティックミキサの入口ポートには上記主剤用第２供給管の先端部と上記硬化剤用第２供給管とが接続されているとともに、スタティックミキサの出口ポートには混合供給管の基端部が接続されており、かつ、混合供給管の先端部にはノズルが着脱自在に接続されていること、および、
積層工程において構造物の表面に補強繊維材を取り付けて当該表面に補強繊維層を形成し、かつ、空間形成工程において補強繊維層を成形型枠材で被覆して補強繊維層内蔵の成形空間を形成した後、補強成形工程において主剤と硬化剤とからなる二液型の未硬化接着剤を成形空間内に注入充填するときに、主剤供給系と硬化剤供給系とにおいて、主剤用液体槽内の主剤をポンプ部で圧力調整しつつこれを主剤用供給管より混合供給系のスタティックミキサに送り込むと同時に、硬化剤用液体槽内の硬化剤をポンプ部で圧力調整しつつこれを硬化剤用供給管より混合供給系のスタティックミキサに送り込み、かつ、この主剤と硬化剤とが送り込まれた混合供給系のスタティックミキサでは、主剤と硬化剤とを混合状態にした未硬化接着剤を当該硬化剤供給系の混合供給管を経由してノズルより成形空間内に注入充填すること、しかもこの際の主剤供給系や硬化剤供給系について、外気の温度が低いときには、主剤用液体槽内の主剤や硬化剤用液体槽内の硬化剤をそれぞれ温度調整手段で温度保持して外気温の影響を抑えること、および、
補強成形工程で成形空間内に注入充填された二液型の上記未硬化接着剤を補強繊維層に含浸させて硬化させることを特徴とする。 The structure reinforcing method according to claim 1 of the present invention is characterized by the following problem solving means in order to achieve the intended purpose. That is, the structure reinforcing method according to claim 1 is:
A lamination step for forming the reinforcing fiber layer on the surface by attaching a reinforcing fiber material on the surface of the structure, to form a molding space with a built-in reinforcing fiber layer covering the reinforcing fiber layer in the mold frame members And a reinforcing molding step for injecting and filling an uncured adhesive into the molding space, and impregnating the adhesive into the reinforcing fiber layer and curing it , and
As the adhesive, a two-component type consisting of a main agent and a curing agent is used, and as an adhesive injection filling means, a main agent supply system for supplying the main agent, a curing agent supply system for supplying the curing agent, Using both of these systems combined to form a mixture of the main agent and curing agent and a mixed supply system for supplying it; and
The main agent supply system of the adhesive injection filling means is a liquid tank for containing the main agent, an output-adjustable main agent pump unit for sending out the main agent in the main agent liquid tank, the main agent liquid tank and the main agent pump. A first supply pipe for the main agent extending over the part, and a second supply pipe for the main agent extending over the pump part for the main agent and the mixed supply system, of which the liquid tank for the main agent has temperature adjusting means And
The curing agent supply system of the adhesive injection filling means includes a liquid tank for containing the curing agent, an output-adjustable curing agent pump unit for delivering the curing agent in the curing agent liquid tank, and a curing agent A first supply pipe for the hardener that extends between the liquid tank and the hardener pump section, and a second supply pipe for the hardener that extends between the hardener pump section and the mixed supply system, and curing of the first supply pipe. The liquid tank for the agent has temperature adjusting means, and
The mixed supply system of the adhesive injection filling means includes a static mixer, a mixed supply pipe, and a nozzle, and an inlet port of the static mixer has an end portion of the second supply pipe for the main agent and a second supply for the hardener. A pipe is connected, the outlet port of the static mixer is connected to the base end of the mixing supply pipe, and the tip of the mixing supply pipe is detachably connected to the nozzle, and,
Attaching a reinforcing fiber material on the surface of the structure to form a reinforcing fiber layer on the surface in the laminating step, and forming a space covered with a molding form member reinforcing fiber layer built a reinforcing fiber layer in the space formation step When the two-component uncured adhesive comprising the main agent and the curing agent is injected and filled into the molding space in the reinforcing molding step, the main agent liquid tank is used in the main agent supply system and the curing agent supply system. While adjusting the pressure of the main agent in the pump part to the static mixer of the mixing supply system from the main agent supply pipe, at the same time, adjusting the pressure of the hardening agent in the liquid tank for the hardening agent while adjusting the pressure in the pump part. In the mixed supply system static mixer in which the main agent and the curing agent are sent from the supply pipe to the mixed supply system static mixer, the uncured adhesive in which the main agent and the curing agent are mixed is applied. For agents to inject filling shaped space from the nozzle via the mixed feed pipe of the supply system, moreover the main agent supply system and the curing agent supply system at this time, when the outside air temperature is low, the main agent for the liquid bath Maintaining the temperature of the curing agent in the liquid tank for the main agent and curing agent, respectively, by the temperature adjusting means to suppress the influence of the outside temperature, and
The two-part of the uncured adhesive injected filling formed space in the reinforcing molding process to impregnate the reinforcing fiber layer, characterized in that cured.

本発明の請求項２に係る構造物補強工法は所期の目的を達成するために下記の課題解決手段を特徴とする。すなわち請求項２記載の構造物補強工法は、
構造物の表面に補強繊維材を取り付けて当該表面に補強繊維層を形成するための積層工程と、補強繊維層を成形型枠材で被覆して補強繊維層を内蔵した成形空間を形成するための空間形成工程と、未硬化接着剤を成形空間内に注入充填するとともに当該接着剤を補強繊維層に含浸させて硬化させるための補強成形工程と、接着剤の硬化で構造物と補強繊維層とが一体化した後に成形型枠材を構造物から取り外すための型材撤去工程とを備えていること、および、
接着剤として主剤と硬化剤とからなる二液型のものを用いるとともに、接着剤注入充填手段として、主剤を供給するための主剤供給系と、硬化剤を供給するための硬化剤供給系と、これら両系を合流させて主剤と硬化剤の混合物をつくりそれを供給するための混合供給系とを備えたものを用いること、および、
接着剤注入充填手段の主剤供給系が、主剤を収容するための液体槽と、主剤用液体槽内の主剤を送り出すための出力調整式の主剤用ポンプ部と、主剤用液体槽と主剤用ポンプ部とにわたる主剤用の第１の供給管と、主剤用ポンプ部と混合供給系とにわたる主剤用の第２の供給管とを備えていて、そのうちの主剤用液体槽が温度調整手段を有していること、および、
接着剤注入充填手段の硬化剤供給系が、硬化剤を収容するための液体槽と、硬化剤用液体槽内の硬化剤を送り出すための出力調整式の硬化剤用ポンプ部と、硬化剤用液体槽と硬化剤用ポンプ部とにわたる硬化剤用の第１の供給管と、硬化剤用ポンプ部と混合供給系とにわたる硬化剤用の第２の供給管とを備えていて、そのうちの硬化剤用液体槽が温度調整手段を有していること、および、
接着剤注入充填手段の混合供給系が、スタティックミキサと混合供給管とノズルとを備えていて、スタティックミキサの入口ポートには上記主剤用第２供給管の先端部と上記硬化剤用第２供給管とが接続されているとともに、スタティックミキサの出口ポートには混合供給管の基端部が接続されており、かつ、混合供給管の先端部にはノズルが着脱自在に接続されていること、および、
積層工程において構造物の表面に補強繊維材を取り付けて当該表面に補強繊維層を形成し、かつ、空間形成工程において補強繊維層を成形型枠材で被覆して補強繊維層内蔵の成形空間を形成した後、補強成形工程において主剤と硬化剤とからなる二液型の未硬化接着剤を成形空間内に注入充填するときに、主剤供給系と硬化剤供給系とにおいて、主剤用液体槽内の主剤をポンプ部で圧力調整しつつこれを主剤用供給管より混合供給系のスタティックミキサに送り込むと同時に、硬化剤用液体槽内の硬化剤をポンプ部で圧力調整しつつこれを硬化剤用供給管より混合供給系のスタティックミキサに送り込み、かつ、この主剤と硬化剤とが送り込まれた混合供給系のスタティックミキサでは、主剤と硬化剤とを混合状態にした未硬化接着剤を当該硬化剤供給系の混合供給管を経由してノズルより成形空間内に注入充填すること、しかもこの際の主剤供給系や硬化剤供給系について、外気の温度が低いときには、主剤用液体槽内の主剤や硬化剤用液体槽内の硬化剤をそれぞれ温度調整手段で温度保持して外気温の影響を抑えること、および、
補強成形工程で成形空間内に注入充填された二液型の上記未硬化接着剤を補強繊維層に含浸させて硬化させること、および、
接着剤の硬化で構造物と補強繊維層とが一体化した後の型材撤去工程において成形型枠材を構造物から取り外すことを特徴とする。 The structure reinforcing method according to claim 2 of the present invention is characterized by the following problem solving means in order to achieve the intended purpose. That is, the structure reinforcing method according to claim 2 is:
A lamination step for forming the reinforcing fiber layer on the surface by attaching a reinforcing fiber material on the surface of the structure, to form a molding space with a built-in reinforcing fiber layer covering the reinforcing fiber layer in the mold frame members A space forming step, a reinforcing molding step for injecting and filling an uncured adhesive into a molding space and impregnating the adhesive into the reinforcing fiber layer, and curing the adhesive, and the structure and the reinforcing fiber layer by curing the adhesive. And a mold material removing step for removing the molding form material from the structure after being integrated , and
As the adhesive, a two-component type consisting of a main agent and a curing agent is used, and as an adhesive injection filling means, a main agent supply system for supplying the main agent, a curing agent supply system for supplying the curing agent, Using both of these systems combined to form a mixture of the main agent and curing agent and a mixed supply system for supplying it; and
The main agent supply system of the adhesive injection filling means is a liquid tank for containing the main agent, an output-adjustable main agent pump unit for sending out the main agent in the main agent liquid tank, the main agent liquid tank and the main agent pump. A first supply pipe for the main agent extending over the part, and a second supply pipe for the main agent extending over the pump part for the main agent and the mixed supply system, of which the liquid tank for the main agent has temperature adjusting means And
The curing agent supply system of the adhesive injection filling means includes a liquid tank for containing the curing agent, an output-adjustable curing agent pump unit for delivering the curing agent in the curing agent liquid tank, and a curing agent A first supply pipe for the hardener that extends between the liquid tank and the hardener pump section, and a second supply pipe for the hardener that extends between the hardener pump section and the mixed supply system, and curing of the first supply pipe. The liquid tank for the agent has temperature adjusting means, and
The mixed supply system of the adhesive injection filling means includes a static mixer, a mixed supply pipe, and a nozzle, and an inlet port of the static mixer has an end portion of the second supply pipe for the main agent and a second supply for the hardener. A pipe is connected, the outlet port of the static mixer is connected to the base end of the mixing supply pipe, and the tip of the mixing supply pipe is detachably connected to the nozzle, and,
Attaching a reinforcing fiber material on the surface of the structure to form a reinforcing fiber layer on the surface in the laminating step, and forming a space covered with a molding form member reinforcing fiber layer built a reinforcing fiber layer in the space formation step When the two-component uncured adhesive comprising the main agent and the curing agent is injected and filled into the molding space in the reinforcing molding step, the main agent liquid tank is used in the main agent supply system and the curing agent supply system. While adjusting the pressure of the main agent in the pump part to the static mixer of the mixing supply system from the main agent supply pipe, at the same time, adjusting the pressure of the hardening agent in the liquid tank for the hardening agent while adjusting the pressure in the pump part. In the mixed supply system static mixer in which the main agent and the curing agent are sent from the supply pipe to the mixed supply system static mixer, the uncured adhesive in which the main agent and the curing agent are mixed is applied. For agents to inject filling shaped space from the nozzle via the mixed feed pipe of the supply system, moreover the main agent supply system and the curing agent supply system at this time, when the outside air temperature is low, the main agent for the liquid bath Maintaining the temperature of the curing agent in the liquid tank for the main agent and curing agent, respectively, by the temperature adjusting means to suppress the influence of the outside temperature, and
Impregnating the reinforcing fiber layer with the two-part uncured adhesive injected and filled in the molding space in the reinforcing molding step, and curing the reinforcing fiber layer ; and
The molding frame material is removed from the structure in the mold material removing step after the structure and the reinforcing fiber layer are integrated by curing the adhesive .

本発明の請求項３に係る構造物補強工法は、請求項１または２に記載された工法において、主剤供給系の主剤用液体槽と硬化剤供給系の硬化剤用液体槽とがそれぞれ温度調整手段を有しており、補強成形工程に際して外気の温度が低いときには、主剤用液体槽内の主剤や硬化剤用液体槽内の硬化剤をそれぞれ温度調整手段で温度保持して外気温の影響を抑えることを特徴とする。 Structure reinforcing construction method according to claim 3 of the present invention, in the method according to claim 1 or 2, a liquid tank for a curing agent for the curing agent supply system and the liquid tank base resin main agent supply system and each temperature adjustment When the temperature of the outside air is low during the reinforcement molding process, the temperature of the main agent in the main agent liquid tank and the hardener in the hardener liquid tank is maintained by the temperature adjusting means, respectively. It is characterized by suppressing.

本発明の請求項４に係る構造物補強工法は、請求項１〜３のいずれかに記載された工法において、積層工程のときに、構造物の表面に二層以上の補強繊維材を取り付けて補強繊維層を形成することを特徴とする。 Structure reinforcing construction method according to claim 4 of the present invention is claimed in the method according to any of claims 1 to 3, when the lamination step, the surface of the structure fitted with two or more layers of reinforcing fabric A reinforcing fiber layer is formed.

本発明工法は、補強繊維層を内蔵した成形空間を構造物表面に形成した後、そこに未硬化接着剤を注入充填して当該接着剤を補強繊維層に含浸・硬化させる。こうして接着剤を補強繊維層に含浸させるときは補強繊維材の多寡にかかわらず作業が単工程化するから施工が合理的に行える。したがって構造物補強工事において、補強繊維層の厚さを増して高強度に仕上げたりするときの工期が短縮する。もちろん事後の端末処理も要しないから、これも工期短縮に通じる。 In the method according to the present invention, after forming a molding space containing a reinforcing fiber layer on the surface of a structure, an uncured adhesive is injected and filled therein, and the reinforcing fiber layer is impregnated and cured. In this way, when the reinforcing fiber layer is impregnated with the adhesive, the work can be carried out rationally because the operation becomes a single process regardless of the number of reinforcing fiber materials. Accordingly, in the structure reinforcement work, the work period when the reinforcing fiber layer is increased in thickness and finished with high strength is shortened. Of course, there is no need for terminal processing after the fact, which leads to shortening of the construction period.

本発明工法は既述のとおり、構造物表面の成形空間で補強繊維層に接着剤を含浸・硬化させてこれらによる合成物を構造物と一体化させる。この際の合成物は接着剤が補強繊維層の連続気孔（空隙）に浸透して硬化したもの、しかも、接着剤が補強繊維層に絡んで両者が全体にわたり均一分布したものであるから、全体的に均質で高度の合成強度を発揮する。すなわちこれは、構造物の表面に一体形成された均質で高強度の合成物により当該構造物が十分に補強されるのであるから、補強後の構造物が強度的に信頼性の高いものになる。 As described above, in the method of the present invention, the reinforcing fiber layer is impregnated with an adhesive in the molding space on the surface of the structure and cured to integrate the resulting composite with the structure. The composite at this time is one in which the adhesive penetrates into the continuous pores (voids) of the reinforcing fiber layer and hardens, and the adhesive is entangled with the reinforcing fiber layer and both are uniformly distributed throughout. Homogeneous and highly synthetic strength. In other words, this is because the structure is sufficiently reinforced by a homogeneous and high-strength composite integrally formed on the surface of the structure, so that the structure after reinforcement becomes highly reliable in strength. .

本発明の実施形態を詳述するあたり、本発明で重要な用語やその他の事項を先行して説明しておく。 In describing embodiments of the present invention in detail, important terms and other matters in the present invention will be described in advance.

本発明における「補強」の語は「補修」をも含めた上位概念の語である。それは補修によって構造物が補強されるからである。その他の作業や工事でも、それが構造物の強度を増したり高めたりするものであれば「補強」の概念に含まれる。 The term “reinforcement” in the present invention is a high-level concept word including “repair”. This is because the structure is reinforced by repair. Other works and constructions are included in the concept of “reinforcement” if they increase or enhance the strength of the structure.

本発明工法で補強される構造物は三次元的（立体的）な形状構造を有し、縦断面形状および／または横断面形状が多角形・円形（楕円形を含む）・異形のいずれかをしている。このような構造物には中空体や箱体も含まれる。構造物は、また、別の観点からみて多面体といえる。ちなみに立方体や直方体のような構造物は前面・後面・上面・下面・右面・左面を有する六面体といえる。このような六面はいずれも補強可能な表面である。ゆえに本発明方法で補強される表面には前面・後面・上面・下面・右面・左面などが含まれる。これらの面を正面・背面・平面・底面・右側面・左側面といいかえても同じである。本発明方法で補強される表面は構造物の外面だけでなく構造物の内面もこれに該当する。もちろんこれには「おもて面」「うら面」「外周面」「内周面」なども含まれる。 The structure reinforced by the method of the present invention has a three-dimensional (three-dimensional) shape structure, and the vertical cross-sectional shape and / or the cross-sectional shape is polygonal, circular (including elliptical), or irregular. is doing. Such structures include hollow bodies and box bodies. The structure is also a polyhedron from another viewpoint. Incidentally, a structure such as a cube or a rectangular parallelepiped is a hexahedron having a front surface, a rear surface, an upper surface, a lower surface, a right surface, and a left surface. These six surfaces are all reinforced surfaces. Therefore, the surface reinforced by the method of the present invention includes a front surface, a rear surface, an upper surface, a lower surface, a right surface, a left surface, and the like. These surfaces are the same as the front, back, plane, bottom, right side, and left side. The surface reinforced by the method of the present invention corresponds to not only the outer surface of the structure but also the inner surface of the structure. Of course, this includes “front surface”, “back surface”, “outer peripheral surface”, “inner peripheral surface”, and the like.

本発明における代表的な構造物を材料面ないし材質面からいうと、それの構造物は一部または全部がコンクリート製のものである。具体的なコンクリート構造物としては既述のコンクリート床板・コンクリート橋脚・コンクリート梁・コンクリート外壁・コンクリート架台・コンクリート堰堤・コンクリート砂防ダム・トンネル・ビルディングなどがこれに該当する。その他のコンクリート構造物も本発明工法で補強することができる。このほか、一部または全部が木製の構造物・一部または全部が金属製の構造物・一部または全部が合成樹脂製の構造物・全体が複合材製の構造物なども本発明工法で補強することができる。 If the typical structure in this invention is said from a material surface thru | or a material surface, the structure is part or all made of concrete. Specific concrete structures include concrete floor boards, concrete piers, concrete beams, concrete outer walls, concrete mounts, concrete dams, concrete sabo dams, tunnels, buildings, etc. as described above. Other concrete structures can also be reinforced by the method of the present invention. In addition, some or all wooden structures, some or all metal structures, some or all synthetic resin structures, all composite structures, etc. Can be reinforced.

本発明工法の実施形態として添付図面に例示されたものは、接着剤としてエポキシ樹脂系二液型のものを用いる例である。この実施形態は工事成果の向上・作業の安定性・作業能率の向上・作業中断の自由・省力化・コストダウン・作業準備と後始末の簡易化など、これらを満足させる点で望ましいものである。 What is illustrated in the accompanying drawings as an embodiment of the construction method of the present invention is an example in which an epoxy resin two-component type is used as an adhesive. This embodiment is desirable in terms of satisfying these, such as improvement of construction results, stability of work, improvement of work efficiency, freedom of work interruption, labor saving, cost reduction, simplification of work preparation and cleanup. .

本発明の一実施例である図１・図２には、本発明工法や本発明装置のほか、本発明工法によって補強される構造物Ｃが例示されている。図１に示された構造物Ｃは柱状または壁状のもので、前面Ｃ１・後面Ｃ２・上面Ｃ３・下面Ｃ４のほか、図示しない右面や左面を有している。このケースで補強される表面は構造物Ｃの前面Ｃ１であるが、前面Ｃ１以外の一面・複数の面・全面なども本発明工法で補強できる。以下の説明においては、構造物Ｃの前面・後面・上面・下面・右面・左面などの各面を単に表面ということがある。 FIG. 1 and FIG. 2, which is an embodiment of the present invention, illustrate a structure C reinforced by the present invention method in addition to the present method and apparatus. The structure C shown in FIG. 1 is columnar or wall-like, and has a front surface C1, a rear surface C2, an upper surface C3, a lower surface C4, and a right surface and a left surface not shown. The surface reinforced in this case is the front surface C1 of the structure C, but one surface, a plurality of surfaces, the entire surface, etc. other than the front surface C1 can be reinforced by the method of the present invention. In the following description, each surface such as the front surface, the rear surface, the upper surface, the lower surface, the right surface, and the left surface of the structure C may be simply referred to as a surface.

上記構造物Ｃは、本格的な補強工事に入る前に表面Ｃ１側でいくつかの処理を受ける。そのうちの一つは下地処理工程である。下地処理工程のときは、劣化した表層部の除去・ひび割れ処理・防錆処理・断面修復処理などが行われる。この際のひび割れ処理・防錆処理・断面修復処理などにはエポキシ樹脂系・ポリエステル樹脂系・ポリマーセメント系の材料がよく用いられる。他の一つはプライマー処理工程である。プライマー処理工程のときは、後述する補強繊維層との付着性を高めるため、これとの接着効果の高い下地層たとえば合成樹脂層（ウレタン樹脂系・エポキシ樹脂系など）が表面Ｃ１に塗布形成される。これら以外の一つは不陸調整工程である。不陸調整工程は下地層の凹凸を均して平坦化するというもので、下地層を部分的に削り取ったり部分的に肉付けしたりする。 The structure C undergoes several treatments on the surface C1 side before entering full-scale reinforcement work. One of them is a ground processing step. In the surface treatment process, removal of the deteriorated surface layer portion, crack treatment, rust prevention treatment, cross-section repair treatment, and the like are performed. In this case, epoxy resin-based, polyester resin-based, polymer cement-based materials are often used for cracking treatment, rust prevention treatment, cross-section repair treatment, and the like. The other is a primer treatment process. In the primer treatment step, a base layer having a high adhesive effect, for example, a synthetic resin layer (urethane resin type / epoxy resin type, etc.) is applied and formed on the surface C1 in order to enhance adhesion to the reinforcing fiber layer described later. The The other one is the unevenness adjustment process. The unevenness adjustment process is to level the unevenness of the underlayer and flatten it, and the underlayer is partially scraped or partially fleshed out.

このあとに行われる最初の工程は積層工程である。積層工程のときは、構造物Ｃの表面Ｃ１に一層以上望ましくは二層以上の補強繊維材４をあてがい、これを表面Ｃ１に取り付けてそこに補強繊維層５を形成する。補強繊維材４については無機繊維（無機化学繊維など）・有機繊維（有機化学繊維・植物系繊維・動物系繊維など）・複合繊維（無機繊維と有機繊維の複合体）のうちの一種以上が任意に選択される。具体的にいえば、アラミド繊維・炭素繊維・ポリアミド繊維（ナイロン繊維）・ガラス繊維・銅製や鉄製の金属繊維・ミネラル繊維・セラミックス繊維などが単独または複数の組み合わせで用いられる。補強繊維材４についてさらにいうと、これは織布または不織布の状態でシート状をしている。かかる補強繊維材４は、構造物Ｃがコンクリート製の場合にコンクリート釘・接着剤・固定具などのいずれか一つ以上で数カ所をスポット止めされ、それで構造物Ｃの表面Ｃ１に取り付けられる。コンクリート製以外の構造物Ｃの場合もこれに準じた取付手段が採用される。ただしこの取り付けは仮止め状態にすぎないものである。 The first process performed after this is a lamination process. In the laminating step, one or more layers, preferably two or more layers of reinforcing fiber material 4 are applied to the surface C1 of the structure C, and this is attached to the surface C1 to form the reinforcing fiber layer 5 there. For the reinforcing fiber material 4, at least one of inorganic fiber (inorganic chemical fiber, etc.), organic fiber (organic chemical fiber, plant fiber, animal fiber, etc.), composite fiber (composite of inorganic fiber and organic fiber) is used. Arbitrarily selected. Specifically, aramid fiber, carbon fiber, polyamide fiber (nylon fiber), glass fiber, copper or iron metal fiber, mineral fiber, ceramic fiber, etc. are used alone or in combination. When it says further about the reinforcing fiber material 4, this is carrying out the sheet form in the state of a woven fabric or a nonwoven fabric. When the structure C is made of concrete, the reinforcing fiber material 4 is spot-stopped at several points by any one or more of concrete nails, adhesives, fixtures, and the like, and is attached to the surface C1 of the structure C. In the case of the structure C other than concrete, an attachment means according to this is adopted. However, this attachment is only temporarily fixed.

つぎなる工程は空間形成工程である。空間形成工程のときは補強繊維層５を成形型枠材６・７で被覆して成形空間８を構造物Ｃの表面Ｃ１に形成する。この成形型枠材６・７については木製・金属製・プラスチック製・これらの複合材製などいずれでもよい。そのうちで一方の成形型枠材６は成形空間８の周囲壁を形成するためのもの、他方の成形型枠材６は成形空間８の前面壁を形成するためのものである。これらの成形型枠材６・７も構造物Ｃがコンクリート製の場合にそれ用の釘とか接着剤とか固定具とかで表面Ｃ１に取り外し可能に取り付けられる。この工程において、構造物Ｃの表面Ｃ１にある補強繊維層５は成形型枠材６・７により被覆されて成形空間８内に内蔵されるが、該成形空間８内には後述の未硬化接着剤３が注入される。そのため成形型枠材６・７の少なくとも一方たとえば成形型枠材７には接着剤３の注入口が形成される。このほか、両成形型枠材６・７のいずれか一方または両方には、接着剤注入時に成形空間８内の空気を外部へ逃がすため通気孔が形成されていたりする。 The next step is a space forming step. In the space forming step, the reinforcing fiber layer 5 is covered with the molding frame materials 6 and 7 to form the molding space 8 on the surface C1 of the structure C. The molding frame materials 6 and 7 may be made of wood, metal, plastic, or a composite material thereof. Among them, one mold frame material 6 is for forming the peripheral wall of the molding space 8, and the other mold frame material 6 is for forming the front wall of the molding space 8. When the structure C is made of concrete, these molding frame members 6 and 7 are also detachably attached to the surface C1 with a nail, an adhesive, or a fixture for the structure C. In this step, the reinforcing fiber layer 5 on the surface C1 of the structure C is covered with the molding frame materials 6 and 7 and incorporated in the molding space 8. The molding space 8 has an uncured adhesive which will be described later. Agent 3 is injected. Therefore, an injection port for the adhesive 3 is formed in at least one of the mold frame materials 6 and 7, for example, the mold frame material 7. In addition, a vent hole is formed in either one or both of the molding frame members 6 and 7 in order to release the air in the molding space 8 to the outside when the adhesive is injected.

そのつぎの工程は補強成形工程である。補強成形工程のときは、未硬化接着剤３を成形空間８内に注入充填するとともに当該接着剤３を補強繊維層５に含浸させて硬化させる。この場合の接着剤３としてはウレタン樹脂系・エポキシ樹脂系・ポリエステル樹脂系・ビニールエステル樹脂系など任意のものが採用できる。ちなみに図１・図２での接着剤３はエポキシ樹脂系二液型のもので主剤１と硬化剤２とからなる。これらについては、主剤１がＡ液で、硬化剤２がＢ液といわれたりする。以下、主剤１・硬化剤２・接着剤注入充填手段１１について詳述し、それから補強成形工程を説明する。 The next process is a reinforcement molding process. In the reinforcing molding step, the uncured adhesive 3 is injected and filled into the molding space 8, and the reinforcing fiber layer 5 is impregnated with the adhesive 3 and cured. In this case, any adhesive such as urethane resin, epoxy resin, polyester resin, and vinyl ester resin can be used as the adhesive 3. Incidentally, the adhesive 3 in FIG. 1 and FIG. 2 is an epoxy resin two-component type and comprises a main agent 1 and a curing agent 2. About these, the main ingredient 1 is called A liquid and the hardening | curing agent 2 is called B liquid. Hereinafter, the main agent 1, the curing agent 2, and the adhesive injection filling means 11 will be described in detail, and then the reinforcing molding process will be described.

主剤１については、ビスフェノールＡ型エポキシ樹脂、ビスフェノールＦ型エポキシ樹脂、ビスフェノールＡＤ型エポキシ樹脂、ノボラック型エポキシ樹脂などをあげることができる。これらは単独で用いられたり併用されたりする。そのうちの代表的な二例をあげると、第１例の主剤１はビスフェノールＡ型エポキシ樹脂１００％からなり、第２例の主剤１はビスフェノールＡ型エポキシ樹脂６０〜７０重量％と顔料１０〜２０重量％と充填材２０〜３０重量％とからなる。 Examples of the main agent 1 include bisphenol A type epoxy resin, bisphenol F type epoxy resin, bisphenol AD type epoxy resin, and novolac type epoxy resin. These may be used alone or in combination. To give two typical examples, the main agent 1 of the first example consists of 100% bisphenol A type epoxy resin, and the main agent 1 of the second example consists of 60 to 70% by weight of bisphenol A type epoxy resin and 10 to 20 pigments. It consists of 20% by weight and 20-30% by weight filler.

硬化剤２については、脂肪族アミン・変性脂肪族アミン・変性脂肪族ポリアミンなどが単独または組み合わせで用いられる。硬化剤２がエーテル系の希釈剤を含んでいることもある。硬化剤２を上記具体例の各主剤１に対応させるならば、第１例の主剤１のための硬化剤２は、脂肪族アミン４５〜５５重量％と変性脂肪族アミン２０〜３０重量％と希釈剤２０〜３０重量％からなり、上記第２例の主剤１ための硬化剤２は変性脂肪族ポリアミン９０〜１００％からなる。 For the curing agent 2, aliphatic amines, modified aliphatic amines, modified aliphatic polyamines and the like are used alone or in combination. The curing agent 2 may contain an ether-based diluent. If the curing agent 2 is made to correspond to each main agent 1 of the above specific example, the curing agent 2 for the main agent 1 of the first example is 45 to 55% by weight of an aliphatic amine and 20 to 30% by weight of a modified aliphatic amine. The curing agent 2 for the main agent 1 of the second example is composed of 90 to 100% of a modified aliphatic polyamine.

図１・図２に例示された接着剤注入充填手段１１は主剤供給系２１と硬化剤供給系３１と混合供給系４１とを備えている。 The adhesive injection filling means 11 illustrated in FIGS. 1 and 2 includes a main agent supply system 21, a curing agent supply system 31, and a mixed supply system 41.

図１での主剤供給系２１は、主剤１を収容するための液体槽２２と主剤１のための流路になる供給管２３・２４と液体槽２２内の主剤１を送り出すためのポンプユニットＰＵとからなる。一例として上面に開閉蓋を備えている図示の液体槽２２は、金属・合成樹脂・それらの複合材など周知の材料で構成されるものである。これについては耐熱性や断熱性を有しているものが望ましい。液体槽２２はこれの内部に収容された主剤１を所望の温度に保持するための温度調整手段たとえば電熱式の加温手段または温水式の加温手段を備えている。このような液体槽２２は恒温槽ということもできる。供給管２３・２４も金属や合成樹脂など周知材料で構成されるものである。そのうちの供給管２３は先端側が二分岐されている。供給管２３・２４も耐熱性や断熱性を有していることが望ましく、とくに外部に曝される部分は断熱材で覆われるのがよい。供給管２３・２４については一部または全体に可撓性をもたせることがある。ポンプユニットＰＵは複数のポンプ部Ｐ１〜Ｐ３が組み合わされたもので、後述の硬化剤供給系３１用も兼ねるものである。ポンプユニットＰＵは、また、三つの吸引ポートと二つの吐出ポートとを有するものである。供給管２３の基端部は液体槽２２の底部に接続され、供給管２３の二分岐型先端部はポンプユニットＰＵの両吸引ポートに接続され、さらに供給管２４の基端部はポンプユニットＰＵの吐出ポートに接続される。 The main agent supply system 21 in FIG. 1 includes a liquid tank 22 for containing the main agent 1, supply pipes 23 and 24 that serve as a flow path for the main agent 1, and a pump unit PU for sending out the main agent 1 in the liquid tank 22. It consists of. As an example, the illustrated liquid tank 22 having an open / close lid on the upper surface is made of a known material such as metal, synthetic resin, or a composite material thereof. About this, what has heat resistance and heat insulation is desirable. The liquid tank 22 is provided with a temperature adjusting means for maintaining the main agent 1 accommodated therein at a desired temperature, for example, an electric heating type heating means or a hot water type heating means. Such a liquid tank 22 can also be called a thermostat. The supply pipes 23 and 24 are also made of a well-known material such as metal or synthetic resin. Of these, the supply pipe 23 is bifurcated on the tip side. It is desirable that the supply pipes 23 and 24 also have heat resistance and heat insulation, and in particular, a portion exposed to the outside is preferably covered with a heat insulating material. The supply pipes 23 and 24 may be partially or wholly flexible. The pump unit PU is a combination of a plurality of pump parts P1 to P3, and also serves as a hardener supply system 31 described later. The pump unit PU also has three suction ports and two discharge ports. The base end of the supply pipe 23 is connected to the bottom of the liquid tank 22, the bifurcated tip of the supply pipe 23 is connected to both suction ports of the pump unit PU, and the base end of the supply pipe 24 is connected to the pump unit PU. Connected to the discharge port.

図１における硬化剤供給系３１は、硬化剤２を収容するための液体槽３２と硬化剤２のための流路になる供給管３３・３４と液体槽３２内の硬化剤２を送り出すための前記ポンプユニットＰＵとからなる。液体槽３２の構成は前記液体槽２２と実質的に同じかそれに準ずる。したがって液体槽３２も恒温槽といえる。供給管３３・３４も前記供給管２３・２４と同様に構成されてはいるが、供給管３３の先端部が分岐されていない。供給管３３の基端部は液体槽３２の底部に接続され、供給管３３の先端部はポンプユニットＰＵの残る吸引ポートに接続され、さらに、供給管３４の基端部はポンプユニットＰＵの残る吐出ポートに接続される。 A curing agent supply system 31 in FIG. 1 is used to send out a liquid tank 32 for containing the curing agent 2, supply pipes 33, 34 serving as a flow path for the curing agent 2, and the curing agent 2 in the liquid tank 32. The pump unit PU. The configuration of the liquid tank 32 is substantially the same as or similar to that of the liquid tank 22. Therefore, it can be said that the liquid bath 32 is also a thermostatic bath. The supply pipes 33 and 34 are also configured in the same manner as the supply pipes 23 and 24, but the tip of the supply pipe 33 is not branched. The proximal end of the supply pipe 33 is connected to the bottom of the liquid tank 32, the distal end of the supply pipe 33 is connected to the remaining suction port of the pump unit PU, and the proximal end of the supply pipe 34 remains of the pump unit PU. Connected to the discharge port.

複数のポンプ部Ｐ１〜Ｐ３からなる上記ポンプユニットＰＵについては、各ポンプ部の出力調整により主剤１・硬化剤２・両者の混合物などの圧力が調整できるものである。 About the said pump unit PU which consists of several pump parts P1-P3, the pressure of the main ingredient 1, the hardening | curing agent 2, and a mixture of both can be adjusted by adjustment of the output of each pump part.

図１における混合供給系４１は、「駆動部のない静止型混合器」すなわちスタティックミキサ４２を主体にして構成される。スタティックミキサ４２は一端側の入口ポート（二つ）、他端側の出口ポート（一つ）、および、入口ポートと出口ポートの間にわたる流路を備えている。スタティックミキサ４２の流路内には、そこを流れる流体に対して分割・転換・反転などの撹拌を起こさせる撹拌エレメントが内蔵されている。撹拌エレメントの代表例は長方形の板を１８０度ねじった形で、ねじれ方向により右エレメントと左エレメントがある。各エレメントの寸法は直径に対して１．５倍の長さを基本とする。混合供給系４１での他の構成部材は混合供給管４３とノズル４４である。混合供給管４３は既述の各管と同様でよいが、可撓性もあることが望ましい。ノズル４４としては注入充填タイプのものが採用される。スタティックミキサ４２の両入口ポートには前記両系２１・３１の供給管２４・３４の先端部がそれぞれ接続され、スタティックミキサ４２の出口ポートには混合供給管４３の基端部が接続される。ノズル４４は脱着自在式の接続具を介して混合供給管４３の先端部に接続される。スタティックミキサ４２に対するノズル４４の脱着・交換については、スタティックミキサ４２と混合供給管４３との接続箇所で行うこともできる。すなわちノズル４４に混合供給管４３を付けたままこれを交換することもできる。 The mixing supply system 41 in FIG. 1 is mainly composed of a “static mixer without a drive unit”, that is, a static mixer 42. The static mixer 42 includes an inlet port (two) on one end side, an outlet port (one) on the other end side, and a flow path extending between the inlet port and the outlet port. In the flow path of the static mixer 42, a stirring element that causes stirring such as division, conversion, and reversal is built in the fluid flowing therethrough. A typical example of the stirring element is a rectangular plate twisted 180 degrees, and there are a right element and a left element depending on the twist direction. The dimensions of each element are basically 1.5 times longer than the diameter. Other components in the mixed supply system 41 are a mixed supply pipe 43 and a nozzle 44. The mixed supply pipe 43 may be the same as the above-described pipes, but it is desirable that the mixed supply pipe 43 be flexible. An injection filling type nozzle is used as the nozzle 44. The distal ends of the supply pipes 24 and 34 of the two systems 21 and 31 are connected to both inlet ports of the static mixer 42, respectively, and the proximal end of the mixing supply pipe 43 is connected to the outlet port of the static mixer 42. The nozzle 44 is connected to the tip of the mixing supply pipe 43 through a detachable connector. The attachment / detachment / exchange of the nozzle 44 with respect to the static mixer 42 can also be performed at the connection point between the static mixer 42 and the mixing supply pipe 43. That is, the nozzle 44 can be replaced with the mixing supply pipe 43 attached.

その他について、図１の接着剤注入充填手段１１に組み込まれる清掃手段には二種類のものがある。そのうちの一方の清掃手段５１は溶剤洗浄式の洗浄ユニット５２と洗浄液管５３とからなる。洗浄ユニット５２はエポキシ樹脂溶剤（洗浄液）を収容するための容器とそこから溶剤を送り出すためのポンプとを主体にして構成される。この場合におけるバルブ５４付き洗浄液管５３は、洗浄ユニット５２と前記スタティックミキサ４２とを接続するためのものである。したがって洗浄液管５３は、その一端部が洗浄ユニット５２の吐出口に接続され、その他端部がスタティックミキサ４２の入口ポート側の端部に接続される。かくて接続された洗浄液管５３はスタティックミキサ４２の入口ポートに通じる。エポキシ樹脂を溶かすための溶剤としては、一例としてハロゲン化炭化水素とプロピレングリコールとの混合物が採用されるが、これ以外に公知や周知の溶剤も採用することができる。この溶剤は洗浄ユニット５２の容器内に収容される。図１で他方の清掃手段６１は空気噴射式の洗浄ユニット６２と可撓性のある高圧空気供給管６３とからなる。洗浄ユニット６２はエアポンプまたはコンプレッサを備えたものからなる。この場合のバルブ６４付き高圧空気供給管６３も洗浄ユニット６２と前記スタティックミキサ４２とを接続するためのものである。したがって高圧空気供給管６３は、その一端部が洗浄ユニット６２の吐出口に接続され、その他端部がスタティックミキサ４２の入口ポート側の端部に接続される。こうして接続された高圧空気供給管６３もスタティックミキサ４２の入口ポートに通じる。 In addition, there are two types of cleaning means incorporated in the adhesive injection filling means 11 of FIG. One of the cleaning means 51 includes a solvent cleaning type cleaning unit 52 and a cleaning liquid pipe 53. The cleaning unit 52 is mainly composed of a container for containing an epoxy resin solvent (cleaning liquid) and a pump for sending the solvent therefrom. In this case, the cleaning liquid pipe 53 with the valve 54 is for connecting the cleaning unit 52 and the static mixer 42. Therefore, one end of the cleaning liquid pipe 53 is connected to the discharge port of the cleaning unit 52, and the other end is connected to the inlet port side end of the static mixer 42. The cleaning liquid pipe 53 thus connected leads to the inlet port of the static mixer 42. As a solvent for dissolving the epoxy resin, for example, a mixture of a halogenated hydrocarbon and propylene glycol is employed, but other known or well-known solvents may be employed. This solvent is contained in the container of the cleaning unit 52. In FIG. 1, the other cleaning means 61 comprises an air jet type cleaning unit 62 and a flexible high-pressure air supply pipe 63. The cleaning unit 62 includes an air pump or a compressor. In this case, the high-pressure air supply pipe 63 with the valve 64 is also for connecting the cleaning unit 62 and the static mixer 42. Therefore, one end of the high-pressure air supply pipe 63 is connected to the discharge port of the cleaning unit 62, and the other end is connected to the end of the static mixer 42 on the inlet port side. The high-pressure air supply pipe 63 thus connected also leads to the inlet port of the static mixer 42.

図１に例示された接着剤注入充填手段１１には、主剤供給系２１・硬化剤供給系３１・混合供給系４１の各出力を調整したりこれらをオンオフしたりするための制御盤（図示せず）がある。その制御盤は、二つの清掃手段５１・６１の各出力を調整したりこれらをオンオフしたりすることもできるものである。一方で、当該制御盤と同等の機能をもつ遠隔操作用のリモートコントローラ（図示せず）がノズル４４側に装備される。この場合のリモートコントローラは有線方式・無線方式のいずれであってもよい。 The adhesive injection filling means 11 illustrated in FIG. 1 includes a control panel (not shown) for adjusting the outputs of the main agent supply system 21, the curing agent supply system 31, and the mixed supply system 41 and turning them on and off. There is). The control panel can also adjust the outputs of the two cleaning means 51 and 61 and turn them on and off. On the other hand, a remote controller (not shown) for remote operation having a function equivalent to that of the control panel is provided on the nozzle 44 side. In this case, the remote controller may be either a wired system or a wireless system.

補強成形工程は図１・図２を参照してつぎのとおりである。主剤供給系２１における液体槽２２内には主剤１が収容されており、硬化剤供給系３１の液体槽３２には硬化剤２が収容されている。これらの主剤１や硬化剤２は、外気の温度が低いときに温度調整手段を介して常温（２０℃）程度に保持されたりする。一方でノズル４４は、成形型７の注入口に接続されて成形空間８の内部と通じている。この状態でポンプユニットＰＵをオンして各ポンプ部Ｐ１〜Ｐ３を作動させると、主剤１は圧力調整されながら液体槽２２→供給管２３→ポンプ部Ｐ１・Ｐ２→供給管２４を経て混合供給系４１のスタティックミキサ４２に至り、硬化剤２も圧力調整されながら液体槽３２→供給管３３→ポンプ部Ｐ３→供給管３４を経て混合供給系４１のスタティックミキサ４２に至る。スタティックミキサ４２に達した主剤１と硬化剤２は、ここを通過する間に均質に撹拌混合されて未硬化接着剤３となり、それが混合供給管４３を経由してノズル４４へ進入するとともにノズル４４の先端から成形空間８内に注入充填される。こうして成形空間８内に注入充填された未硬化接着剤３は補強繊維層５に浸透してそこに含浸した状態となる。その後の養生で所定時間が経過すると未硬化接着剤３が完全に硬化する。かくて接着剤３が硬化したとき、補強繊維層５は接着剤３をともなったＦＲＰ構造に仕上がるとともに接着剤３を介して構造物Ｃとも強力に一体化する。 The reinforcement molding process is as follows with reference to FIGS. The main agent 1 is accommodated in the liquid tank 22 in the main agent supply system 21, and the curing agent 2 is accommodated in the liquid tank 32 of the curing agent supply system 31. The main agent 1 and the curing agent 2 are maintained at a normal temperature (20 ° C.) through the temperature adjusting means when the temperature of the outside air is low. On the other hand, the nozzle 44 is connected to the injection port of the mold 7 and communicates with the inside of the molding space 8. In this state, when the pump unit PU is turned on to operate the pump parts P1 to P3, the main agent 1 is mixed and supplied through the liquid tank 22, the supply pipe 23, the pump parts P1, P2, and the supply pipe 24 while the pressure is adjusted. 41 reaches the static mixer 42 of the mixed supply system 41 through the liquid tank 32 → the supply pipe 33 → the pump part P3 → the supply pipe 34 while the pressure of the curing agent 2 is also adjusted. The main agent 1 and the curing agent 2 that have reached the static mixer 42 are homogeneously stirred and mixed while passing through this to become an uncured adhesive 3, which enters the nozzle 44 via the mixing supply pipe 43 and the nozzle. The molding space 8 is injected and filled from the tip of 44. Thus, the uncured adhesive 3 injected and filled in the molding space 8 penetrates the reinforcing fiber layer 5 and is impregnated therein. When a predetermined time elapses during the subsequent curing, the uncured adhesive 3 is completely cured. Thus, when the adhesive 3 is cured, the reinforcing fiber layer 5 is finished to an FRP structure with the adhesive 3 and is also strongly integrated with the structure C via the adhesive 3.

上記の工事では作業を一時的に中断したりすることがある。そのために主剤１や硬化剤２の供給を停止すると、混合供給系４１内に残留した未硬化接着剤３が硬化し、該硬化物が混合供給系４１内を閉塞する。この事態を回避して以降の実施や設備使用を可能にするためには、原因物質たる未硬化接着剤３を混合供給系４１内から速やかに取り除くことを要する。そのような場合はポンプユニットＰＵを停止した後、第１段階で清掃手段５１を用い、第２段階で清掃手段６１を用いて混合供給系４１内を清掃すればよい。これについては以下のとおりである。 In the above construction, work may be temporarily interrupted. Therefore, when the supply of the main agent 1 and the curing agent 2 is stopped, the uncured adhesive 3 remaining in the mixed supply system 41 is cured, and the cured product closes the mixed supply system 41. In order to avoid this situation and enable subsequent implementation and use of the equipment, it is necessary to quickly remove the uncured adhesive 3 as the causative substance from the mixed supply system 41. In such a case, after the pump unit PU is stopped, the inside of the mixed supply system 41 may be cleaned using the cleaning means 51 in the first stage and using the cleaning means 61 in the second stage. This is as follows.

図１を参照して、第１段階では清掃手段５１の洗浄ユニット５２を稼働させる。このようにしたときは、洗浄ユニット５２の容器内にある洗浄液（溶剤）がポンプ吸引されて洗浄液管５３から送り出され、それがスタティックミキサ４２の入口ポートよりその内部に進入する。スタティックミキサ４２内に進入した洗浄液は、混合供給管４３を経由してノズル４４の先端より外部へ出るまでの間、これらの経路に残留している未硬化接着剤３を硬化させることなく外部へと搬出する。また、これらの経路で硬化し始めたものがある場合も、洗浄液はそれを外部へと搬出する。図１を参照して、第２段階では清掃手段６１の洗浄ユニット６２を稼働させる。このようにしたときは、空気噴射式洗浄ユニット６２で発生した高圧エアが高圧空気供給管６３を経由してスタティックミキサ４２の入口ポートよりその内部に進入する。スタティックミキサ４２内に進入した高圧エアは、混合供給管４３を経由してノズル４４の先端より外部へ出るまでの間、これらの経路に残留している洗浄液や異物（硬化物の残滓）を外部へと搬出する。かくて混合供給系４１内は閉塞のないクリーン状態に保持され、つぎの使用に備えることとなる。 With reference to FIG. 1, in the first stage, the cleaning unit 52 of the cleaning means 51 is operated. When this is done, the cleaning liquid (solvent) in the container of the cleaning unit 52 is pumped and sent out from the cleaning liquid pipe 53, and it enters the inside from the inlet port of the static mixer 42. The cleaning liquid that has entered the static mixer 42 passes through the mixing supply pipe 43 to the outside from the tip of the nozzle 44 to the outside without curing the uncured adhesive 3 remaining in these paths. And carry it out. Also, even if there is something that has started to harden by these routes, the cleaning liquid carries it out to the outside. Referring to FIG. 1, in the second stage, the cleaning unit 62 of the cleaning means 61 is operated. When this is done, the high-pressure air generated by the air-jet cleaning unit 62 enters the interior of the static mixer 42 through the high-pressure air supply pipe 63. The high-pressure air that has entered the static mixer 42 passes through the mixing supply pipe 43 to the outside from the tip of the nozzle 44 and removes the cleaning liquid and foreign matters (residue of the cured product) remaining in these paths. Unload to. Thus, the inside of the mixed supply system 41 is kept in a clean state without blockage, and is prepared for the next use.

補強成形工程のあとは型材撤去工程を行う。これは撤去用の工具や機械類を用いて前記成形型枠材６・７を構造物Ｃの表面Ｃ１から取り外すだけであり、それで型材撤去工程が完了する。 After the reinforcement molding process, a mold material removal process is performed. This is simply by removing the molding frame materials 6 and 7 from the surface C1 of the structure C using a removal tool or machinery, and the mold material removal step is completed.

その後は必要時応じて表面被覆工程を実施したりする。これは機能性コーティング層を接着剤含浸補強繊維層５の表面に形成するというものである。ちなみに機能性コーティング層の機能については、耐候性・耐熱耐火性・耐食性・耐薬品性・防水性・装飾性などのうちの一つ以上があげられる。この場合に用いられる被覆材料はフッ素樹脂系・アクリルウレタン樹脂系・アクリルシリコン樹脂系・ポリマーセメント系・エポキシ−アクリル複合樹脂系などである。 Thereafter, a surface coating step is performed as necessary. This is to form a functional coating layer on the surface of the adhesive-impregnated reinforcing fiber layer 5. Incidentally, the function of the functional coating layer includes one or more of weather resistance, heat resistance, fire resistance, corrosion resistance, chemical resistance, waterproofness, decorativeness, and the like. The coating material used in this case is a fluororesin system, an acrylic urethane resin system, an acrylic silicon resin system, a polymer cement system, an epoxy-acrylic composite resin system, or the like.

本発明工法の接着剤注入充填手段については、図３に例示するような実施例も採用できる。この図示例のものはポンプユニットＰＵの要部がモーノポンプで構成されるものである。すなわち図３のポンプ部Ｐ４・Ｐ５はロータがステータの中で偏心回転することにより接着剤を所定部へ供給するというものである。この場合のロータは金属製で断面が真円の一条ネジからなり、ステータは弾性材製で断面が長円の二条ネジからなる。図３の実施形態で説明を省略した部分は図１・図２で述べた事項と実質的に同じかそれに準ずる。 The embodiment illustrated in FIG. 3 can also be employed for the adhesive injection filling means of the method of the present invention. In the illustrated example, the main part of the pump unit PU is constituted by a MONO pump. That is, the pump parts P4 and P5 in FIG. 3 supply the adhesive to a predetermined part when the rotor rotates eccentrically in the stator. In this case, the rotor is made of a single screw having a perfect cross section made of metal, and the stator is made of a double screw having an elliptical cross section made of an elastic material. Portions that are not described in the embodiment of FIG. 3 are substantially the same as or similar to the matters described in FIGS.

図１のポンプユニットＰＵが図４に例示のものに変更されることもある。図４のポンプユニットＰＵについていうと、ポンプ部Ｐ１〜Ｐ２はそれぞれギアポンプを主体にしたものからなり、圧力スイッチＳ１がポンプユニットＰＵに装備されたり、ポンプの回転数を計測するための計測機構Ｓ２がポンプ部Ｐ２に装備されたりする。 The pump unit PU in FIG. 1 may be changed to that illustrated in FIG. Referring to the pump unit PU in FIG. 4, each of the pump parts P1 to P2 is mainly composed of a gear pump, and a pressure switch S1 is provided in the pump unit PU or a measuring mechanism S2 for measuring the rotational speed of the pump. Is installed in the pump part P2.

図４のポンプユニットＰＵについては、ポンプ部Ｐ１〜Ｐ２（ギアポンプ）の回転数を制御することで主剤１や硬化剤２の注入圧力を調整したり、圧力スイッチＳ１と連繋することで吐出圧力をコントロールしたりする。その場合にポンプ部Ｐ２に取り付けられた計測機構Ｓ２は吐出量算出のためのポンプ回転数を表示する。 For the pump unit PU in FIG. 4, the injection pressure of the main agent 1 and the curing agent 2 is adjusted by controlling the rotation speed of the pump parts P1 to P2 (gear pump), or the discharge pressure is adjusted by connecting to the pressure switch S1. Or control. In that case, the measuring mechanism S2 attached to the pump part P2 displays the pump rotational speed for calculating the discharge amount.

図１における混合供給系４１が図５に例示のものに変更されることもある。図５の混合供給系４１も駆動部のない静止型混合器（スタティックミキサ４２）を主体にして構成されるものであるが、そのスタティックミキサ４２の構成が既述のものと相違する。すなわち図５のスタティックミキサ４２は、一端側の入口ポート（一つ）、他端側の出口ポート（一つ）、および、入口ポートと出口ポートの間にわたる流路を備えている。図５のスタティックミキサ４２の流路内には、そこを流れる流体に対して撹拌を起こさせるための撹拌ブラシ体４５が内蔵されている。撹拌ブラシ体４５は中心軸の外周面よりブラシ毛が螺旋状に突出しているものであるため、スタティックミキサ４２の流路内に螺旋状の流路を形成する。したがって、このようなスタティックミキサ４２を流れる主剤１や硬化剤２もここで均一に撹拌される。図５のスタティックミキサ４２は適当な撹拌ブラシ体４５を選択することによって材料の粘性に対応させるのが容易に行える。 The mixed supply system 41 in FIG. 1 may be changed to that illustrated in FIG. The mixing supply system 41 in FIG. 5 is also configured mainly with a static mixer (static mixer 42) having no drive unit, but the configuration of the static mixer 42 is different from that already described. That is, the static mixer 42 in FIG. 5 includes an inlet port (one) at one end, an outlet port (one) at the other end, and a flow path extending between the inlet port and the outlet port. In the flow path of the static mixer 42 of FIG. 5, a stirring brush body 45 for causing stirring of the fluid flowing therethrough is incorporated. In the stirring brush body 45, the brush bristles protrude spirally from the outer peripheral surface of the central axis, and thus a spiral flow path is formed in the flow path of the static mixer 42. Accordingly, the main agent 1 and the curing agent 2 flowing through the static mixer 42 are also uniformly stirred here. The static mixer 42 in FIG. 5 can be easily adapted to the viscosity of the material by selecting an appropriate stirring brush body 45.

本発明の他実施例として積層工程と空間形成工程と補強成形工程とからなるものを実施する場合は型材撤去工程が省略される。この実施例での各工程も基本は既述の内容と同じであるが、空間形成工程での成形型枠材６・７としては表面被覆材をも兼ねるものを用いる。そうすることで成形型枠材６・７が機能性コーティングの一部または全部を兼ねるようになる。したがってこの実施例によるときは、工程数の削減と材料費の節減とがはかれる。 As another embodiment of the present invention, when a process including a lamination process, a space formation process, and a reinforcement molding process is performed, the mold material removal process is omitted. The basic steps of the steps in this embodiment are the same as those described above. However, as the mold frame members 6 and 7 in the space forming step, those that also serve as surface covering materials are used. By doing so, the mold materials 6 and 7 can also serve as part or all of the functional coating. Therefore, according to this embodiment, the number of processes can be reduced and the material cost can be reduced.

本発明工法の特徴は下記(1) 〜 (7)のとおりである。
(1) 接着剤の含浸した高強度の補強繊維層を形成するというとき、積層工程・空間形成工程・補強成形工程など数工程を経るだけでこれを一挙に形成することができる。これについては補強繊維層の厚さが増す場合でも工程数が増えない。事後の端末処理も要しない。したがって構造物を補強するときの工期短縮をはかることができる。
(2) 構造物に一体化させた補強のための合成物は接着剤が補強繊維層に絡んで両者が全体にわたり均一分布したもので、全体的に均質で高度の合成強度を発揮するから、補強後の構造物が強度的に信頼性の高いものになる。
(3) 接着剤注入充填手段によるときは接着剤の運搬と混合が同期かつ一元化するので、作業種の減少により合理化がはかれる。
(4) 接着剤注入充填手段においては各供給系で主剤や硬化剤を計量して両者の混合比を実質的に誤差ゼロに抑えることができる。これによって接着剤特性を工事条件にマッチングさせることができるから、補強について設計どおりの工事成果が得られる。
(5) 接着剤注入充填手段の各系において主剤・硬化剤・混合物（未硬化接着剤）の温度・粘度・圧力などをすべてコントロールすることができる。これらが行えるときは、屋外工事であっても外因性の影響（例：外気温の影響）を抑えて作業の安定性を確保することができる。これはまた、補強の質を高めることにもなる。
(6) 主剤や硬化剤を接着剤注入充填手段の各系によってコントロールできるから機械化や自動化が確立する。別の観点では作業員への依存が大幅に減り、機械的作業で高度の仕上がりを期すことができる。したがって上記の点とも併せた場合、グレードの高さを維持しながら作業能率の向上や省力化をはかることができ、工事のコストダウンも実現する。
(7) 主剤や硬化剤の供給を停止したときは、混合供給系内に残留した両者の混合物が硬化し、それが混合供給系内を閉塞する。これを放置した場合は、以降の実施や設備使用が困難になる。けれども接着剤注入充填手段には混合供給系の清掃手段がある。これによれば上記混合物を残留させることなく混合供給系内を清掃することができる。したがって作業を中断したり終了したりしたときに清掃手段が役立つ。しかも清掃手段は作業中断の自由を保証する。 The characteristics of the method of the present invention are as follows (1) to (7).
(1) When a high-strength reinforcing fiber layer impregnated with an adhesive is formed, it can be formed all at once by a few steps such as a lamination process, a space forming process, and a reinforcing molding process. In this regard, the number of steps does not increase even when the thickness of the reinforcing fiber layer is increased. No subsequent terminal processing is required. Therefore, it is possible to shorten the work period when reinforcing the structure.
(2) Since the composite for reinforcement integrated in the structure is an adhesive entangled with the reinforcing fiber layer and both are uniformly distributed throughout, it exhibits a uniform and high degree of composite strength overall. The structure after reinforcement becomes highly reliable in strength.
(3) When using the adhesive injection filling means, the conveyance and mixing of the adhesive are synchronized and unified, so rationalization is achieved by reducing the number of work types.
(4) In the adhesive injection filling means, the main agent and the curing agent can be measured in each supply system, and the mixing ratio of both can be suppressed to substantially zero error. As a result, the adhesive properties can be matched with the construction conditions, so that the construction results as designed for the reinforcement can be obtained.
(5) The temperature, viscosity, pressure, etc. of the main agent, curing agent, and mixture (uncured adhesive) can be controlled in each system of the adhesive injection and filling means. When these operations can be performed, it is possible to secure work stability by suppressing external influences (eg, the influence of outside air temperature) even in outdoor construction. This also increases the quality of the reinforcement.
(6) Since the main agent and curing agent can be controlled by each system of adhesive injection and filling means, mechanization and automation are established. From another point of view, the dependence on workers is greatly reduced, and a high degree of finishing can be expected by mechanical work. Therefore, when combined with the above points, the work efficiency can be improved and the labor can be saved while maintaining the height of the grade, and the construction cost can be reduced.
(7) When the supply of the main agent and the curing agent is stopped, the mixture of the two remaining in the mixed supply system is hardened, which closes the mixed supply system. If this is left unattended, it will be difficult to implement and use the equipment. However, the adhesive injection filling means has a cleaning means of a mixed supply system. According to this, the inside of the mixed supply system can be cleaned without leaving the mixture. Therefore, the cleaning means is useful when the work is interrupted or finished. Moreover, the cleaning means guarantees freedom of work interruption.

本発明工法の一実施例を略示した断面図である。It is sectional drawing which showed schematically one Example of this invention construction method. 図１の一部拡大図である。FIG. 2 is a partially enlarged view of FIG. 1. 本発明工法の他実施例の要部を略示した断面図である。It is sectional drawing which showed schematically the principal part of the other Example of this invention construction method. 本発明工法におけるポンプユニットの他例を略示した断面図である。It is sectional drawing which showed schematically the other example of the pump unit in this invention construction method. 本発明工法における混合供給系の他例を略示した断面図である。It is sectional drawing which showed schematically the other examples of the mixing supply system in this invention construction method.

Explanation of symbols

Ｃ構造物
C1 構造物の表面（前面）
C2 構造物の表面（後面）
C3 構造物の表面（上面）
C4 構造物の表面（下面）
１主剤
２硬化剤
３未硬化接着剤
４補強繊維材
５補強繊維層
６成形型枠材
７成形型枠材
８成形空間
１１接着剤注入充填手段
２１主剤供給系
２２液体槽
２３供給管
２４供給管
３１硬化剤供給系
３２液体槽
３３供給管
３４供給管
４１混合供給系
４２スタティックミキサ
４３混合供給管
４４ノズル
５１清掃手段
５２洗浄ユニット
５３洗浄液管
５４バルブ
６１清掃手段
６２洗浄ユニット
６３高圧空気供給管
６４バルブ
ＰＵポンプユニット
Ｐ１ポンプ部
Ｐ２ポンプ部
Ｐ３ポンプ部
Ｐ４ポンプ部
Ｐ５ポンプ部 C structure
C1 Structure surface (front)
C2 Structure surface (rear)
C3 Structure surface (upper surface)
C4 Structure surface (bottom surface)
DESCRIPTION OF SYMBOLS 1 Main agent 2 Curing agent 3 Uncured adhesive 4 Reinforcement fiber material 5 Reinforcement fiber layer 6 Mold frame material 7 Mold frame material 8 Molding space 11 Adhesive injection filling means 21 Main agent supply system 22 Liquid tank 23 Supply pipe 24 Supply pipe DESCRIPTION OF SYMBOLS 31 Hardener supply system 32 Liquid tank 33 Supply pipe 34 Supply pipe 41 Mixing supply system 42 Static mixer 43 Mixing supply pipe 44 Nozzle 51 Cleaning means 52 Cleaning unit 53 Cleaning liquid pipe 54 Valve 61 Cleaning means 62 Cleaning unit 63 High pressure air supply pipe 64 Valve PU Pump unit P1 Pump part P2 Pump part P3 Pump part P4 Pump part P5 Pump part

Claims

A lamination step for forming the reinforcing fiber layer on the surface by attaching a reinforcing fiber material on the surface of the structure, to form a molding space with a built-in reinforcing fiber layer covering the reinforcing fiber layer in the mold frame members And a reinforcing molding step for injecting and filling an uncured adhesive into the molding space, and impregnating the adhesive into the reinforcing fiber layer and curing it , and
As the adhesive, a two-component type consisting of a main agent and a curing agent is used, and as an adhesive injection filling means, a main agent supply system for supplying the main agent, a curing agent supply system for supplying the curing agent, Using both of these systems combined to form a mixture of the main agent and curing agent and a mixed supply system for supplying it; and
The main agent supply system of the adhesive injection filling means is a liquid tank for containing the main agent, an output-adjustable main agent pump unit for sending out the main agent in the main agent liquid tank, the main agent liquid tank and the main agent pump. A first supply pipe for the main agent extending over the part, and a second supply pipe for the main agent extending over the pump part for the main agent and the mixed supply system, of which the liquid tank for the main agent has temperature adjusting means And
The curing agent supply system of the adhesive injection filling means includes a liquid tank for containing the curing agent, an output-adjustable curing agent pump unit for delivering the curing agent in the curing agent liquid tank, and a curing agent A first supply pipe for the hardener that extends between the liquid tank and the hardener pump section, and a second supply pipe for the hardener that extends between the hardener pump section and the mixed supply system, and curing of the first supply pipe. The liquid tank for the agent has temperature adjusting means, and
The mixed supply system of the adhesive injection filling means includes a static mixer, a mixed supply pipe, and a nozzle, and an inlet port of the static mixer has an end portion of the second supply pipe for the main agent and a second supply for the hardener. A pipe is connected, the outlet port of the static mixer is connected to the base end of the mixing supply pipe, and the tip of the mixing supply pipe is detachably connected to the nozzle, and,
Attaching a reinforcing fiber material on the surface of the structure to form a reinforcing fiber layer on the surface in the laminating step, and forming a space covered with a molding form member reinforcing fiber layer built a reinforcing fiber layer in the space formation step When the two-component uncured adhesive comprising the main agent and the curing agent is injected and filled into the molding space in the reinforcing molding step, the main agent liquid tank is used in the main agent supply system and the curing agent supply system. While adjusting the pressure of the main agent in the pump part to the static mixer of the mixing supply system from the main agent supply pipe, at the same time, adjusting the pressure of the hardening agent in the liquid tank for the hardening agent while adjusting the pressure in the pump part. In the mixed supply system static mixer in which the main agent and the curing agent are sent from the supply pipe to the mixed supply system static mixer, the uncured adhesive in which the main agent and the curing agent are mixed is applied. For agents to inject filling shaped space from the nozzle via the mixed feed pipe of the supply system, moreover the main agent supply system and the curing agent supply system at this time, when the outside air temperature is low, the main agent for the liquid bath Maintaining the temperature of the curing agent in the liquid tank for the main agent and curing agent, respectively, by the temperature adjusting means to suppress the influence of the outside temperature, and
Structure reinforcing construction method, wherein curing the two-part of the uncured adhesive injected filling formed space in the reinforcing molding step impregnated into the reinforcing fiber layer.

A lamination step for forming the reinforcing fiber layer on the surface by attaching a reinforcing fiber material on the surface of the structure, to form a molding space with a built-in reinforcing fiber layer covering the reinforcing fiber layer in the mold frame members A space forming step, a reinforcing molding step for injecting and filling an uncured adhesive into a molding space and impregnating the adhesive into the reinforcing fiber layer, and curing the adhesive, and the structure and the reinforcing fiber layer by curing the adhesive. And a mold material removing step for removing the molding form material from the structure after being integrated , and
As the adhesive, a two-component type consisting of a main agent and a curing agent is used, and as an adhesive injection filling means, a main agent supply system for supplying the main agent, a curing agent supply system for supplying the curing agent, Using both of these systems combined to form a mixture of the main agent and curing agent and a mixed supply system for supplying it; and
The main agent supply system of the adhesive injection filling means is a liquid tank for containing the main agent, an output-adjustable main agent pump unit for sending out the main agent in the main agent liquid tank, the main agent liquid tank and the main agent pump. A first supply pipe for the main agent extending over the part, and a second supply pipe for the main agent extending over the pump part for the main agent and the mixed supply system, of which the liquid tank for the main agent has temperature adjusting means And
The curing agent supply system of the adhesive injection filling means includes a liquid tank for containing the curing agent, an output-adjustable curing agent pump unit for delivering the curing agent in the curing agent liquid tank, and a curing agent A first supply pipe for the hardener that extends between the liquid tank and the hardener pump section, and a second supply pipe for the hardener that extends between the hardener pump section and the mixed supply system, and curing of the first supply pipe. The liquid tank for the agent has temperature adjusting means, and
The mixed supply system of the adhesive injection filling means includes a static mixer, a mixed supply pipe, and a nozzle, and an inlet port of the static mixer has an end portion of the second supply pipe for the main agent and a second supply for the hardener. A pipe is connected, the outlet port of the static mixer is connected to the base end of the mixing supply pipe, and the tip of the mixing supply pipe is detachably connected to the nozzle, and,
Attaching a reinforcing fiber material on the surface of the structure to form a reinforcing fiber layer on the surface in the laminating step, and forming a space covered with a molding form member reinforcing fiber layer built a reinforcing fiber layer in the space formation step When the two-component uncured adhesive comprising the main agent and the curing agent is injected and filled into the molding space in the reinforcing molding step, the main agent liquid tank is used in the main agent supply system and the curing agent supply system. While adjusting the pressure of the main agent in the pump part to the static mixer of the mixing supply system from the main agent supply pipe, at the same time, adjusting the pressure of the hardening agent in the liquid tank for the hardening agent while adjusting the pressure in the pump part. In the mixed supply system static mixer in which the main agent and the curing agent are sent from the supply pipe to the mixed supply system static mixer, the uncured adhesive in which the main agent and the curing agent are mixed is applied. For agents to inject filling shaped space from the nozzle via the mixed feed pipe of the supply system, moreover the main agent supply system and the curing agent supply system at this time, when the outside air temperature is low, the main agent for the liquid bath Maintaining the temperature of the curing agent in the liquid tank for the main agent and curing agent, respectively, by the temperature adjusting means to suppress the influence of the outside temperature, and
Impregnating the reinforcing fiber layer with the two-part uncured adhesive injected and filled in the molding space in the reinforcing molding step, and curing the reinforcing fiber layer ; and
A structure reinforcing method characterized in that the forming frame material is removed from the structure in the mold material removing step after the structure and the reinforcing fiber layer are integrated by curing the adhesive.

The main agent liquid tank for the main agent supply system and the liquid tank for the hardener for the hardener supply system each have a temperature adjusting means, and when the temperature of the outside air is low during the reinforcement molding process, The structure reinforcing method according to claim 1 or 2, wherein the temperature of the curing agent in the liquid tank for the curing agent is maintained by the temperature adjusting means to suppress the influence of the outside air temperature.

The structure reinforcing method according to any one of claims 1 to 3, wherein a reinforcing fiber layer is formed by attaching two or more layers of reinforcing fiber materials to the surface of the structure during the lamination step.